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bmelyk Group TitleBest ResponseYou've already chosen the best response.1
The height at time t (s) of a weight, oscillating up and down at the end of a spring is given below. s(t) = 400 + 90sin(t)
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
a) Find the velocity at t = π/3 s. b) Find the acceleration at t = π/3 s
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
so for a) my equation i had was 90sin(t) and b) 90cos(t)
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
wondering if those are right.
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
for velocity, u differentiate once, for acceleration, u differentiate twice.
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
first derivative of s(t) = 400 + 90sin(t) is ??
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
90cos(t) ??
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
yes, thats your velocity
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
and acceleration ?
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
thats correct also :)
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
now just put t values
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
so the answers are: A) 45 b) 45 sqrt3 ???
 one year ago

bmelyk Group TitleBest ResponseYou've already chosen the best response.1
woo hoooo. : )
 one year ago
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